Parts for your 2007 Holden Captiva 5-Spark plugs

2007 Holden Captiva 5 Spark Plugs – What They Do and When to Replace

Based on the Holden CG Captiva Owner’s Handbook (2007), GM Global Service Information for the CG series, and Australian application catalogues from NGK and ACDelco, the 2007 Holden Captiva 5 with the 2.4‑litre petrol engine is fitted with four spark plugs (one per cylinder). So yes, spark plugs absolutely apply to this model. For context, diesel Captiva variants use glow plugs instead of spark plugs, but the 2007 Captiva 5 petrol relies on spark plugs for ignition.

On the petrol Captiva 5, the spark plugs are the tiny workhorses that ignite the air–fuel mix in each cylinder, helping the engine start quickly, idle smoothly, and pull cleanly through the revs. Modern OE‑spec iridium plugs (as listed by NGK and ACDelco for the CG Captiva) offer long life, steady spark under load, and better resistance to fouling—ideal for city commuting and open‑road touring across Aus and NZ.

For servicing, the handbook and parts catalogues point to long‑life iridium plugs with typical change intervals around 90,000–100,000 km, though it’s smart to inspect them earlier—especially if the Captiva sees lots of short trips, heavy towing, or dusty conditions. Always follow the service schedule in the owner’s handbook. The plugs are usually pre‑gapped to around 1.0–1.1 mm, don’t force‑adjust fine‑wire iridium tips. When installing, fit only on a cool engine, blow out any grit from the plug wells, and torque to spec (commonly in the 18–22 Nm range for 14 mm plugs in an alloy head—check the manual for the exact figure). Most modern NGK/ACDelco plugs are nickel‑plated and don’t need anti‑seize, a light smear of dielectric grease on the coil boots helps future removal and keeps moisture out.

Keeping fresh plugs in a Captiva 5 helps fuel economy, reduces misfires under load, and keeps the check‑engine light away. If it’s running a bit rough or feeling flat, a quick plug inspection can reveal a lot—sooty tips (rich), oily deposits (possible oil control issue), or worn electrodes (overdue replacement).

• Signs it’s time: sluggish starts, rough idle, hesitation, higher fuel use, or a flashing MIL under load.
• Use OE‑equivalent iridium plugs from reputable brands listed for the CG Captiva 2.4‑litre petrol.
• Replace as a set of four and scan for fault codes if misfires persist.

Popular questions about 2007 Holden Captiva 5 spark plugs

What spark plug type suits a 2007 Holden Captiva 5?
For the 2.4‑litre petrol, an OE‑equivalent iridium plug from brands like NGK or ACDelco is recommended. You’ll need four. Match the exact part number to the VIN and follow the handbook’s spec, including the factory gap, which is typically around 1.0–1.1 mm.

How often should the spark plugs be changed?
Under normal Australian and New Zealand conditions, plan on roughly every 90,000–100,000 km for long‑life iridium plugs, or earlier if the vehicle does frequent short trips, tows, or works in dusty areas. Always defer to the interval in the Holden service booklet and inspect if drivability changes.

Does the diesel Captiva need spark plugs?
No. Diesel Captiva variants use glow plugs and compression ignition, so spark plugs don’t apply. The 2007 Captiva 5 petrol, however, does use spark plugs and includes them in the scheduled maintenance.